All-Transactions House Price Index for New London County, CT was 232.84000 Index 2000=100 in January of 2024, according to the United States Federal Reserve. Historically, All-Transactions House Price Index for New London County, CT reached a record high of 232.84000 in January of 2024 and a record low of 36.35000 in January of 1978. Trading Economics provides the current actual value, an historical data chart and related indicators for All-Transactions House Price Index for New London County, CT - last updated from the United States Federal Reserve on September of 2025.